That is not a problem exclusive to Samsung's TV . All TV brands have a mega over-saturated Dynamic /Vivid mode .
These "QLED" has a weakness of not able to fully tame its massive colors spectrum but undersaturated is not one of them .
Samsung's Flagship TVs has a movie mode that is fairly accurate , far more than a certain ABC brands I won't be naming here .
What is not accurate is their PQ adherence . Since PQ is absolute , it is hard to calibrate your TV to exact same level as PQ chart .
The wRGB OLED TV is losing color saturation at brighter colors is not exactly a secret .
The problem lies with sites like rtings when people tend to throw their numbers around like swinging a sword , often end up hurting themself more than not .
You see the DCI coverage numbers from rtings on OLED TV - 98 % !
And then you look at the Quantum Dots LCD , only 95% ? Woohoo OLED Wins , amirite ?
Does that DCI chart from rting tell you the whole story ? Not at all , not even close .
Those numbers are 2D measurement but the color spectrum is a 3D monster . They are not representative of how your TV will perform .
If the 2D color coverage is not that important , why not just focus on the MDC test ? Because it is very difficult to measure color volume .
Typically we only take 8 measurement or so for the Color Gamut . For Color Volume we have to do hundreds of them.
(We now have MDC from Dolby Lab that can measure color saturation up to 10000 cd/m2 on Rec.2100 )
In a MDC test of 1000 cd/m2 , we can use a very loose number to tell the difference.
A wRGB OLED can show roughly 300 ~ 400 millions colors .
A Quantum Dots TV with 2000 cd/m2 such as those Vizio Quantum and Q95T can do 800 millions +, possibly way more due to limited size samples .
[Note : this is assuming all test is done on 10% window where LCD is typically brighter at 15-25 % and OLED is brightest at 3% , all pixels have 10 bit color component .
Barring these numbers , there is a lot more color science involved behind the scene , I am not explaining that on a forum .)
This indicate a TV with high brightness isn't just a screen with dazzling lights , they also have a whole new world of color saturation range that is wider than wRGB OLED .
Note : To those who complain about 2000 cd/m2 being too bright , remember they are talking about an additive color system . The brightest white of 2000 nits , does not mean TV is going to show you 2000 nits of colors .
Brightest peak of white consist of 3 other separate primary colors , namely Red , Green and Blue . As a result , a pure saturated blue may just end up to be around 200 nits on a display of 2000 nits peak .
Now imagine your OLED TV may be struggling to reproduce 200 nits of 100% saturated blue .
I am sure a lot of the OLED elitist ( like I once was ) will tell you perfect black makes everything .
True that the perfect black will leverage some of the shortcoming but what about scenes with a lot of bright area ?
On high APL ( > 70% ) scenes , where you will find a noticeable difference in movies that has such as the fairly recent Maleficent 2 , where it looks quite a bit paler on a wRGB OLED .
Or you can try playing the same movie on your Samsung S20 or Iphone , you just cannot get the same level of vibrancy on OLED TV .
OLED TVs ( the panels manufactured by LGD specifically ) has hit the roadbloack in terms of Picture Quality for several years now . The LCDs , however are improving to close the gap every year .
In the past few years , they have introduced wide angles optical filters ( not perfect but an innovation regardless ) , achieve an even higher level of sustainable brightness , dual layer LCD with light compensation technique ( not the same as those you found on mid-range Samsung TV ) , a more advanced algorithm of Local Dimming that does not need to rely on numbers of dimming zones , VRR ( they have it before the OLEDs ) ...
I have always adore the self emissive screens , from good old plasma to OLEDs .
As I see it now , there is a spot for the OLEDs and a spot for the Quantum LCDs .
OLED TV is no doubt a masterpiece for SDR stuff . But its HDR performance could use more improvement , including the less than ideal dark gray performance .
This give us a reason to wait for LG to announce its top emission transition every year , and the new Quantum Blue OLEDs from Samsung .
Very good dci coverage information for tv. I always enjoy high nits video demo at my qled. Especially, after
2 point & 20 point white balance , custom color space adjustment . Become more shadow detail & more lively color than default.